/**
 * @author xuzj
 */
CQCIS.tree.ColumnRootUI = Ext.extend(CQCIS.tree.ColumnNodeUI, {
	renderElements : function(n, a, targetNode, bulkRender) {
		this.indentMarkup = n.parentNode ? n.parentNode.ui.getChildIndent() : '';
		var t = n.getOwnerTree();
		var cols = t.columns;
		var bw = 2;
		var c = cols[0];
		var buf = [
				'<li class="x-tree-node"><div ext:tree-node-id="',
				n.id,
				'" class="x-tree-node-el x-tree-node-leaf ',
				a.cls,
				'">',
				'<div class="x-tree-col" style="width:',
				c.width - bw,
				'px;">',
				'<input class="x-tree-node-cb" type="checkbox" value="',
				this.node.id,
				'"',
				' style="display:',
				this.node.ownerTree.checkbox ? "inline" : "none",
				';"',
				' />',
				'<span class="x-tree-node-indent">',
				this.indentMarkup,
				"</span>",
				'<img src="',
				this.emptyIcon,
				'" class="x-tree-ec-icon x-tree-elbow">',
				'<img src="',
				a.icon || this.emptyIcon,
				'" class="x-tree-node-icon',
				(a.icon ? " x-tree-node-inline-icon" : ""),
				(a.iconCls ? " " + a.iconCls : ""),
				'" unselectable="on">',
				'<a hidefocus="on" class="x-tree-node-anchor" href="',
				a.href ? a.href : "#",
				'" tabIndex="1" ',
				a.hrefTarget ? ' target="' + a.hrefTarget + '"' : "",
				'>',
				'<span unselectable="on">',
				n.text || (c.renderer ? c.renderer(a[c.dataIndex], n, a) : a[c.dataIndex]), "</span></a>", "</div>"];
		for (var i = 1, len = cols.length;i < len; i++) {
			c = cols[i];
			buf.push('<div class="x-tree-col ', (c.cls ? c.cls : ''),
					'" style="width:', c.width - bw, 'px;">',
					'<div class="x-tree-col-text">',
					'<a hidefocus="on" class="x-tree-node-anchor" href="',
					a.href ? a.href : "#",
                    '" tabIndex="1" ',
                    a.hrefTarget ? ' target="' + a.hrefTarget + '"' : "",
                    '>',
                    '<span unselectable="on">',
                    (c.renderer ? c.renderer(a[c.dataIndex], n, a) : a[c.dataIndex]),
                    "</span></a>",
                    "</div>",
					"</div>");
		}
		buf.push('<div class="x-clear"></div></div>',
				'<ul class="x-tree-node-ct" style="display:none;"></ul>',
				"</li>");

		if (bulkRender !== true && n.nextSibling && n.nextSibling.ui.getEl()) {
			this.wrap = Ext.DomHelper.insertHtml("beforeBegin", n.nextSibling.ui.getEl(), buf.join(""));
		} else {
			this.wrap = Ext.DomHelper.insertHtml("beforeEnd", targetNode, buf.join(""));
		}
		this.elNode = this.wrap.childNodes[0];
		this.ctNode = this.wrap.childNodes[1];
		var cs = this.elNode.firstChild.childNodes;
		this.checkbox = cs[0];
		this.indentNode = cs[1];
		this.ecNode = cs[2];
		this.iconNode = cs[3];
		this.anchor = cs[4];
		this.textNode = cs[4].firstChild;
	}
});
